Dai-ichi Kogyo Seiyaku Co., Ltd.

Makoto Teramoto

Hideaki Onishi

Disclosed is a flame retarded styrene-based resin composition containing a brominated flame retardant and an additive capable of enhancing the flame retardancy of the shaped article of the composition even in a very small amount of addition. The composition comprises (A) a styrene-based resin, (B) 0.1 to 30 parts by weight per 100 parts by weight of the resin (A) of a brominated flame retardant having a bromine content greater than 50 wt %, and (C) 0.01 to 0.2 parts by weight per 100 parts by weight of the resin (A) of a metal phthalocyanine selected from iron, manganese, cobalt, nickel, platinum or paradium phthalocyanine.

Flame-retardant styrene resin composition

A flame retarded polyamide or polyester resin composition is disclosed. The composition comprises (A) polyamide or polyester resin; (B) 3 to 50 parts by weight per 100 parts of said resin of brominated polystyrene or brominated polyphenylene ether; and (C) 10 to 10,000 ppm of said resin of a thermal coloration inhibitor selected from the group consisting of hydrazine, a hydrazino compound, a hydrazono compound and an acid addition salt thereof.

Flame retarded polyamide or polyester resin compositions

A flame retarded polyolefin resin composition comprises polyolefin resin, 1 to 40 parts by weight per 100 parts of the polyolefin resin of a brominated bisphenol ether derivative of the formula:wherein R is hydrogen or methyl, and A is &#x2014;C(CH)&#x2014;, &#x2014;SO&#x2014;, &#x2014;S&#x2014;, or &#x2014;CH&#x2014;; and 1 to 30 parts by weight per 100 parts of the polyolefin resin of 2,4,6-tris(mono-, di- or tribromophenoxy)triazine.

Flame-retardant polyolefin resin composition

A flame retarded polyolefin resin composition comprises polyolefin resin, 1 to 40 parts by weight per 100 parts of the polyolefin resin of a brominated bisphenol ether derivative of the formula 1:wherein R is hydrogen or methyl, and A is &#x2014;C(CH)&#x2014;, &#x2014;SO&#x2014;, &#x2014;S&#x2014;, or &#x2014;CH&#x2014;; and 1 to 30 parts by weight per 100 parts of the polyolefin resin of a compound of the formula 2.wherein B is mono-, di- or tribromophenyl group, n is an integer from 1 to 20, and A is as defined above.

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Kyoto, Japan

Makoto Teramoto